Impact of warming on Nostoc colonies (Cyanobacteria) in a wet hummock meadow, Spitsbergen
In order to simulate the warming effects on Arctic tundra, three open-top chambers (OTC) and three control cage-like structures (CCSs) with soil temperature and soil volumetric water content probes were installed in a wet hummock measow in Svalbard in 2009. Prolonged vegetative season was observed i...
Published in: | Polish Polar Research |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2012
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Subjects: | |
Online Access: | https://doi.org/10.2478/v10183-012-0021-4 http://hdl.handle.net/11104/0218678 |
Summary: | In order to simulate the warming effects on Arctic tundra, three open-top chambers (OTC) and three control cage-like structures (CCSs) with soil temperature and soil volumetric water content probes were installed in a wet hummock measow in Svalbard in 2009. Prolonged vegetative season was observed in OTCs, however the temperature at hummock base was increased only by 0.3 °C in OTCs compared to CCSs. Photochemical activity and nitrogenase activity of Nostoc colonies did not differ significantly between OTCs and CCSs. |
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